2018 / ECLIPSE CROSS / EC - Workshop Manual
13 -FUEL > 13A-DIRECT INJECTION AND MULTIPOINT FUEL INJECTION (DI AND MPI) > TROUBLESHOOTING > DIAGNOSIS CODE PROCEDURES > CODE NO. P1608 BATTERY CURRENT SENSOR SYSTEM
Code No. P1608: Battery Current Sensor System
FUNCTION
- The battery current sensor supplies battery current to the engine-ECU via the Local Interconnect Network (LIN).
- In response to the signal, the engine-ECU controls charging and discharging.
TROUBLE JUDGEMENT
Check Conditions
- After 2 seconds since the ignition switch is turned ON or since the completion of engine start.
- Battery positive voltage is more than 10 V and is less than 16.5 V.
Judgement Criterion
- The battery current information from battery sensor is abnormal for 2 seconds.
FAIL-SAFE AND BACKUP FUNCTION
- Prohibits alternator output suppression control against current consumers. (operates as a normal alternator.)
- In the normal operation, the auto stop is prohibited.
- If the malfunction is detected during the auto stop, carry out the forcible auto start.
PROBABLE CAUSES
- Failed battery current sensor
- Failed engine-ECU
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-IIISE diagnosis code
STEP 2. Replace the battery current sensor
- After replacing the battery current sensor, reconfirm whether the diagnosis code is set.
Is the diagnosis code set?
Replace the engine-ECU.
Check end.
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